Rotational Damper
Viscous damper in mechanical rotational systems
Library
Mechanical Rotational Elements
Description
The Rotational Damper block represents an ideal mechanical rotational viscous damper described with the following equations:
where
T | Torque transmitted through the damper |
D | Damping (viscous friction) coefficient |
ω | Relative angular velocity |
ωR, ωC | Absolute angular velocities of terminals R and C, respectively |
The block positive direction is from port R to port C. This means that the torque is positive if it acts in the direction from R to C.
Variables
To set the priority and initial target values for the block variables prior to simulation, use the Initial Targets section in the block dialog box or Property Inspector. For more information, see Set Priority and Initial Target for Block Variables.
Nominal values provide a way to specify the expected magnitude of a variable in a model. Using system scaling based on nominal values increases the simulation robustness. Nominal values can come from different sources, one of which is the Nominal Values section in the block dialog box or Property Inspector. For more information, see Modify Nominal Values for a Block Variable.
Parameters
- Damping coefficient
Damping coefficient, defined by viscous friction. The default value is
0.001
N*m/(rad/s).
Ports
The block has the following ports:
R
Mechanical rotational conserving port.
C
Mechanical rotational conserving port.
Extended Capabilities
Version History
Introduced in R2007a
See Also
Rotational Friction | Rotational Hard Stop | Rotational Spring